T_Thewlis

40 Knives! Kill 40 zombies with the bowie knife. (Map Pack 3 only)

Critical Literature Collect all physical Codex pages in a single save slot (Ancient Gods 2)

Perkaholics Anonymous! Survive until round 20 without buying a single Perk. (Map Pack 3 only)

Frequent Flyer! Use the teleporter 8 times. (Map Pack 3 only)

Hard Times To escape death is to beat the strongest of the strong. Finish Arcade Mode on Hardest, kid!

Soul Survivor Reach round 15 in Nazi Zombies without getting revived. (Map Pack 2 only)

Pursuit of Knowledge Filled 80% of the Datalog.

Let's Play Complete the first Horde Mode Mission

Team Player A 1-on-1 fight is fun, but it's more fun with friends! Try fighting in a Team Battle!

Moving On Up Ya need to do anything to reach the top of the food chain! Let's see a Rank Up via Ranked Match!

Pack Addict! Upgrade 5 weapons at the Pack A Punch Machine. (Map Pack 3 only)

New Threads Use a new Title and Icon, and fight in one online match. Right on!

Battle Master Only winners can attain such beauty. Win 30 matches online and I may share my beauty secrets.

Gest - Chapter XIII Finish the levels from Chapter XIII in Warrior difficulty

Three For The Road In the pursuit of strength, one must have a goal! In Endless Battle win 3 matches in a row.

Acquire Waffle Weapons! Obtain the Ray Gun, DG-2, and the Monkey Bomb at the same time in a game. (Map Pack 3 only)

Master of the reliquary Gather all the fingers of Frankenstein

Deadhead Get 150 zombie headshots in a single game. (Map Pack 2 only)

Skirmish - Chapter XIV Finish the levels from Chapter XIV in Squire difficulty

Nightwing Revenge Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack ranked maps (as Nightwing)

Robin Revenge Obtain 78 medals on the original Arkham City and Robin Bundle Pack ranked maps (as Robin)

It's a Trap! Kill at least one zombie with three different traps in a single round. (Map Pack 2 only)

Fivepeat This is your real power, child? Show me it's not luck by winning 5 Ranked Matches in a row!

1-Upsmanship Complete Extra Life Mode with 5 Extra Lives in your Inventory (Ancient Gods 1)

Bring it on! No comrade, this will not do! We must become stronger, for our fans! Fight 100 matches online!

Battle Brother Get a Multiplayer character to Lvl 10.

Campaign Nightwing Obtain 114 medals on the original Arkham City and Nightwing Bundle Pack campaigns (as Nightwing)

Reinvent the Weapon Wheel Re-collect all of the weapons on the Weapon Wheel

Campaign Wonder Obtain 114 medals on the original Arkham City and Robin Bundle Pack campaigns (as Robin)

Rare and Exceptional Purchase Armor, a Charm, or Vanity Gear from Masujiro the Melodious in New Game+.

Welcome to The War Play and complete your first Ranked Match in standard Deathmatch mode

Let it Snow Receive the Extreme Environment Suit (XE Suit)

Drilling for Justice Assemble the cryonucleation tunneller - the cryodrill

Live Die Reload Complete Extra Life Mode with 5 Extra Lives in your Inventory (Ancient Gods 2)

Crusade - Chapter XIII Finish the levels from Chapter XIII in Knight difficulty

Stalact-tactician Takedown 2 enemies with one stalactite

For Auld Lang Syne Stop Freeze and bring Boyle to justice

Game Over Beat Horde Mode

Snowjob Get 3 enemies frozen in one attack

Down with the Revolution Stop Anarky thug operations in South Gotham

Now You C Me... I wrestle only the strong! You shall rank up to C Rank if you wanna face me, comrade!

TBoGT: Past the Velvet Rope Score 80% or above in all missions. (The Ballad of Gay Tony)

Team Mate Win 1 Team Battle match, and you will learn that teamwork can help you become stronger!

Epic victory - Chapter XIII Finish the levels from Chapter XIII in Paladin difficulty

Big Baller Earn 75,000 points in a single Nazi Zombies game. (Map Pack 2 only)

TBoGT: Gold Star Score 100% in all missions. (The Ballad of Gay Tony)

Prep Time You need study materials if you wanna make your battle plan. Follow one player in the Rankings.

Master of Arms Complete 5 weapon challenges.

Armored in Glory Complete 10 armor challenges.

Replayer Watch 30 Replays via the Replay Channel! Isn't it fun watching people go at it tooth and nail!?